{"id":"https://data.mapsnap.org/runs/v1.3/iiif/loc/sanborn00071_010.keymap.iiif.json","type":"AnnotationPage","@context":["http://www.w3.org/ns/anno.jsonld"],"label":"Mobile, Alabama | 1956 | key map | mapsnap generated fit (2026-09-22)","creator":{"type":"Software","name":"mapsnap","homepage":"https://mapsnap.org"},"rights":"https://opendatacommons.org/licenses/odbl/1-0/","metadata":[{"label":"generated","value":"2026-09-22"},{"label":"run","value":"corpus-v1"}],"items":[{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974mm:g3974mm_g00071195602:00071_02_1956-0000/georef","type":"Annotation","@context":["http://iiif.io/api/extension/georef/1/context.json","http://iiif.io/api/presentation/3/context.json"],"label":"Mobile, Alabama | 1956 | sanborn00071_010 p0","metadata":[{"label":"streets","value":"132"},{"label":"intersections","value":"116"}],"created":"2026-09-22T00:26:47Z","modified":"2026-09-22T00:26:47Z","motivation":"georeferencing","target":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974mm:g3974mm_g00071195602:00071_02_1956-0000/selector","type":"SpecificResource","source":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974mm:g3974mm_g00071195602:00071_02_1956-0000/info.json","type":"ImageService2","height":8040,"width":6600},"selector":{"type":"SvgSelector","value":"<svg><polygon points=\"-0.0,8040.0 -0.0,-0.0 6600.0,0.0 6600.0,8040.0 -0.0,8040.0\" /></svg>"}},"body":{"id":"https://tile.loc.gov/image-services/iiif/service:gmd:gmd397m:g3974m:g3974mm:g3974mm_g00071195602:00071_02_1956-0000/gcps","type":"FeatureCollection","transformation":{"type":"helmert"},"features":[{"type":"Feature","properties":{"resourceCoords":[4574.0,5665.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.0592891,30.6672038]}},{"type":"Feature","properties":{"resourceCoords":[1811.0,4391.0],"type":"gcp"},"geometry":{"type":"Point","coordinates":[-88.092731,30.681845]}}]}}]}